diff options
Diffstat (limited to 'core/DHT.c')
-rw-r--r-- | core/DHT.c | 63 |
1 files changed, 5 insertions, 58 deletions
@@ -24,6 +24,7 @@ | |||
24 | /*----------------------------------------------------------------------------------*/ | 24 | /*----------------------------------------------------------------------------------*/ |
25 | 25 | ||
26 | #include "DHT.h" | 26 | #include "DHT.h" |
27 | #include "ping.h" | ||
27 | 28 | ||
28 | /* maximum number of clients stored per friend. */ | 29 | /* maximum number of clients stored per friend. */ |
29 | #define MAX_FRIEND_CLIENTS 8 | 30 | #define MAX_FRIEND_CLIENTS 8 |
@@ -109,7 +110,6 @@ uint8_t self_secret_key[crypto_box_SECRETKEYBYTES]; | |||
109 | static Client_data close_clientlist[LCLIENT_LIST]; | 110 | static Client_data close_clientlist[LCLIENT_LIST]; |
110 | static Friend * friends_list; | 111 | static Friend * friends_list; |
111 | static uint16_t num_friends; | 112 | static uint16_t num_friends; |
112 | static Pinged pings[LPING_ARRAY]; | ||
113 | static Pinged send_nodes[LSEND_NODES_ARRAY]; | 113 | static Pinged send_nodes[LSEND_NODES_ARRAY]; |
114 | 114 | ||
115 | /*----------------------------------------------------------------------------------*/ | 115 | /*----------------------------------------------------------------------------------*/ |
@@ -426,35 +426,6 @@ static void returnedip_ports(IP_Port ip_port, uint8_t * client_id, uint8_t * nod | |||
426 | } | 426 | } |
427 | } | 427 | } |
428 | 428 | ||
429 | /* check if we are currently pinging an ip_port and/or a ping_id variables with | ||
430 | * values of zero will not be checked. If we are already, return 1 else return 0 | ||
431 | * | ||
432 | * TODO: optimize this | ||
433 | */ | ||
434 | static int is_pinging(IP_Port ip_port, uint64_t ping_id) | ||
435 | { | ||
436 | uint32_t i; | ||
437 | uint8_t pinging; | ||
438 | uint64_t temp_time = unix_time(); | ||
439 | |||
440 | for (i = 0; i < LPING_ARRAY; ++i ) { | ||
441 | if (!is_timeout(temp_time, pings[i].timestamp, PING_TIMEOUT)) { | ||
442 | pinging = 0; | ||
443 | |||
444 | if (ip_port.ip.i != 0 && ipport_equal(pings[i].ip_port, ip_port)) | ||
445 | ++pinging; | ||
446 | |||
447 | if (ping_id != 0 && pings[i].ping_id == ping_id) | ||
448 | ++pinging; | ||
449 | |||
450 | if (pinging == ((ping_id != 0) + (ip_port.ip.i != 0))) | ||
451 | return 1; | ||
452 | } | ||
453 | } | ||
454 | |||
455 | return 0; | ||
456 | } | ||
457 | |||
458 | /* Same as last function but for get_node requests. */ | 429 | /* Same as last function but for get_node requests. */ |
459 | static int is_gettingnodes(IP_Port ip_port, uint64_t ping_id) | 430 | static int is_gettingnodes(IP_Port ip_port, uint64_t ping_id) |
460 | { | 431 | { |
@@ -480,32 +451,6 @@ static int is_gettingnodes(IP_Port ip_port, uint64_t ping_id) | |||
480 | return 0; | 451 | return 0; |
481 | } | 452 | } |
482 | 453 | ||
483 | /* Add a new ping request to the list of ping requests | ||
484 | * returns the ping_id to put in the ping request | ||
485 | * returns 0 if problem. | ||
486 | * | ||
487 | * TODO: optimize this | ||
488 | */ | ||
489 | static uint64_t add_pinging(IP_Port ip_port) | ||
490 | { | ||
491 | uint32_t i, j; | ||
492 | uint64_t ping_id = ((uint64_t)random_int() << 32) + random_int(); | ||
493 | uint64_t temp_time = unix_time(); | ||
494 | |||
495 | for(i = 0; i < PING_TIMEOUT; ++i ) { | ||
496 | for(j = 0; j < LPING_ARRAY; ++j ) { | ||
497 | if(is_timeout(temp_time, pings[j].timestamp, PING_TIMEOUT - i)) { | ||
498 | pings[j].timestamp = temp_time; | ||
499 | pings[j].ip_port = ip_port; | ||
500 | pings[j].ping_id = ping_id; | ||
501 | return ping_id; | ||
502 | } | ||
503 | } | ||
504 | } | ||
505 | |||
506 | return 0; | ||
507 | } | ||
508 | |||
509 | /* Same but for get node requests */ | 454 | /* Same but for get node requests */ |
510 | static uint64_t add_gettingnodes(IP_Port ip_port) | 455 | static uint64_t add_gettingnodes(IP_Port ip_port) |
511 | { | 456 | { |
@@ -536,7 +481,7 @@ static int pingreq(IP_Port ip_port, uint8_t * public_key) | |||
536 | if(id_equal(public_key, self_public_key) || is_pinging(ip_port, 0)) | 481 | if(id_equal(public_key, self_public_key) || is_pinging(ip_port, 0)) |
537 | return 1; | 482 | return 1; |
538 | 483 | ||
539 | uint64_t ping_id = add_pinging(ip_port); | 484 | uint64_t ping_id = add_ping(ip_port); |
540 | if(ping_id == 0) | 485 | if(ping_id == 0) |
541 | return 1; | 486 | return 1; |
542 | 487 | ||
@@ -1108,7 +1053,7 @@ static int send_NATping(uint8_t * public_key, uint64_t ping_id, uint8_t type) | |||
1108 | static int handle_NATping(uint8_t * packet, uint32_t length, IP_Port source) | 1053 | static int handle_NATping(uint8_t * packet, uint32_t length, IP_Port source) |
1109 | { | 1054 | { |
1110 | if (length < crypto_box_PUBLICKEYBYTES * 2 + crypto_box_NONCEBYTES + ENCRYPTION_PADDING | 1055 | if (length < crypto_box_PUBLICKEYBYTES * 2 + crypto_box_NONCEBYTES + ENCRYPTION_PADDING |
1111 | && length > MAX_DATA_SIZE + ENCRYPTION_PADDING) | 1056 | || length > MAX_DATA_SIZE + ENCRYPTION_PADDING) |
1112 | return 1; | 1057 | return 1; |
1113 | 1058 | ||
1114 | /* check if request is for us. */ | 1059 | /* check if request is for us. */ |
@@ -1301,6 +1246,8 @@ void DHT_save(uint8_t * data) | |||
1301 | */ | 1246 | */ |
1302 | int DHT_load(uint8_t * data, uint32_t size) | 1247 | int DHT_load(uint8_t * data, uint32_t size) |
1303 | { | 1248 | { |
1249 | init_ping(); | ||
1250 | |||
1304 | if(size < sizeof(close_clientlist)) | 1251 | if(size < sizeof(close_clientlist)) |
1305 | return -1; | 1252 | return -1; |
1306 | 1253 | ||